Bunch builder mechanism



Jan 6, 1948. R, R, lB o 2,433, 97

' BUNCH BUILDER MECHANISM Filed April 17, 1947 3 Sheets-Sheet 1 lN\ /ENTOR- RANSOM R. GIBSON ATTORNEY Jan. 6, 1948." I

GIBSON BUNCH BUILDER MECHANISM Filed April 17, 1947 3 Sheets-Sheet 2 "NVENTOR RAusomRGlssoN ATTORNEY Jan. 6, 1948. R. R. GIBSON $33 BUNCH BUILDER MECHANISM Filed April 17, 1947 3 Sheets-Sheet 3 RANSOM R.G|BsoN ATTORNEY Patented Jan. 6, 1948 UNITED STATES PATENT OFFICE BUNCH BUILDER MECHANISM Ransom R. Gibson, Wattsville, S. 0.

Application Aprilj17, 1947, Serial No. 742,186

. Claims. (01. 242-433) The present invention relates to a bunch building mechanism for. filling quills or bobbins of spinning frames.

An important object of the invention is to provide a latch which automatically moves over the ring rail, when the ring rail is moved downwardly to doif the spinning frame, and to limit the upward movement of the ring. rail during theformation of the bunch, the latch being automatically shifted to release the ring rail forupward movement after the formation. of the bunch so that the complete traverse may be made to fill the quill or bobbin.

A further object of the invention is to provide a latch of th above mentioned character which may be manually operated to release the ring rail for upward movement, at any time, without disturbing the arrangement of associated elements, thus enabling the doffer to raise the ring rail and again lower the same for taking .the slack out of the filling.

A further object of the invention is to provide a device of the above mentioned character which is positive and reliable in operation.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of bunch building I mechanism embodying my invention, showing the latch arranged over the ring rail, 1

Figure 2 is a similar view showing the latch moved to release the ring rail, v

Figure 3 is a plan view of the mechanism, showing the latch over the ring rail, and,

Figure 4 is a side elevation of the latch mechanism removed.

The spinning frame comprises ring rails l0,

and :base rails ll, upon opposite sides ofthe spinning frame and a supporting frame l2. The ring rails ID are raised and lowered in unison. This is the conventional spinning frame.

Arranged inwardly of the ring rails 10, and near one ring rail I0, i a vertical shaft l3, journaled in a bearing l4, fixed to the framel'2. The

' numeral l5 designates a vertical U-shaped latch,

tensioned to swing the lower end or arm l1 into engagement with a depending pin 2|, rigidly secured to a collar 22, rigidly clamped to the shaft. The collar 22 and spring l9 hold the latch l5 against longitudinal movement upon the shaft l3. The spring I9 i tensioned to swing the end or lower arm I! into engagement with the pin 2|, as stated, but the latch may be swung upon the shaft l3 in a direction from the pin 2|, to bring the latch [5 out of the path of travel of the ring rail. When the shaft I 3 is turned in the direction of the arrow, the pin 2| will engage the lower end or arm I! and swing the latch l5 in one direction, out of the path of travel of the ring rail.

After the spinning frame is doffed and at the starting of the bunch building period, the U- shaped latch I5 is positioned over the ring rail Ill in its path of travel and will prevent the ring rail from moving up too high while forming the bunch, but permitting of the short traverse of the ring rail. At the beginning of the formation of the bunch, the doffer may want to remove the slack from the filling. To accomplish this, the latch 15 is manually swung from over the ring rail l0, and will occupy a position at the side of the ring rail. The latch IE will then move from the pin 2|, in opposition to the spring l9. The ring rail may be raised and lowered which will remove the slack from the filling. When the ring rail is raised to the uppermost position it is still beneath the top of the latch l5 and holds the latch from the pin. When the ring rail is returned to the lowered position or doffed position the latch will automatically swing over the rin rail and again hold the same lowered during the bunch building period.

. The vertical shaft l3 has a horizontal beveled gear 22, rigidly secured thereto, engaged by a beveled gear 23, rigidly mounted upon a horizontal'shaft 24,,journaled in a fixed bearing 25. The shaft 24 has a crank 26, rigidly secured thereto. This crank is provided with a pivot element or bolt 21, operating within an elongated slot 28, formed in a coupling 29. This coupling has a screw threaded opening 30, for receiving the screw threaded end of a connecting rod 3|, having a curved portion 32.-

The numeral 33 represent a vertically swinging builder arm, suitably connected with the ring rail to raise and lower it. Pivotally mounted upon the builder arm 33 is a curved toothed arm 34. The builder arm carries a roller 35, to be enengages the toothed arm 34.

arm 33, toothed arm 34, roller 35, cams 36 and 31, and shaft 38 are substantially identical with those shown in the patent to J. L. Lyle, 2,140,084 and they are also shown in my copending application for Bunch builder, filed September 13, 1946, Serial No. 696,865. The bunch cam 31 not only raises and lower the toothed arm 34 but swings the toothed arm upon its pivot, from the position shown in Figure 1, to the position shown in Figure 2. The curved end 32 of the connecting rod is pivotally connected with one end of the toothed arm 34, shown at 39.

Figure 1 shows the relative position of the parts at the beginning of the bunch forming peripd The latch 15 is now engaging over the ring rail Ill. The bunch cam 31 is rotating in the direction of the arrow, and the toothed arm 34 is raised and: lowered, and imparts a short stroke to the builder arm 33, which is transmitted to the ring rail While the toothed arm 34 is being reciprocated vertically it is swinging tothe left and downwardly. 7 During this swinging movement of the toothed arm 34, the pivot 21 is at first spaced from the upper end of the slot 28, but continued movement of the toothed arm 34' and rod 3l brings the upper end of the slot 28 into engagement with the pin 21, and when the rod 31 has reached the end of its downward travel, Figure '2, the lever 2-6 has been swung downwardly to the lowered position. This movement .of the lever 26 turns the shaft 24 counter-clockwise, Figure '1, turning gear 23 V counter-clockwise, Figure I, which turns gear 22' clockwise, Figure l. The shaft I3 is turned clockwise and the pin 2| engagesth lower end or arm 11 and swings the latch l5 from 'over the ring rail. The ring rail now rises and assumes the position shown in Figure 2. The main cam 36 now operates the builder arm for effecting the complete traverse of the ring rail. When the spinning frame is doffed, the ring rail Ill is lowered, Figure 1, and the latch will engage over the ring rail, when the shaft 13 is turned counter-clockwise, Figure 1. This is effected when the toothed arm 34 is swung under the bunch cam 31, when the spinning frame is doffed, as is well known. When the shaft 13 turns counter-clockwise, Figure 1, spring l9 causes the latch IE to remain in engagement with the pin 21 and follow the same.

It is thusapparent that I have provided a latch to limit the upper movement of the ring rail during the bunch building period, and which is automatically moved out of the path of travel of thering rail after the bunch is formed and during the filling period. The latch automatically moves over the ring rail when the spinning frame is doffed. Since the latch I5 ispivotally mounted upon the vertical shaft I3 it may be swung manually in one direction out of the path of travel of the ring rail H independently of the gearing. This will enable the dolfer to raise and lower the ring rail to take up the slack in the yarn or filling being wound upon the quill, without turning the shaft l3. When the ring-rail in is in the uppermost posit-ion it is beneath the top of the latch 45.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, what I claim is:

1,. In a bunch builder mechanism, a vertically movable ring rail, a substantially vertical shaft arranged near the ring rail, a horizontally swinging latch pivotally mounted upon the shaft for movement over the ring rail, means mounted upon thesghaft, and contacting with the latch to swing a the latch in one direction when the shaft is turned, the latch being movable from the means,

' and: means to turn the shaft upon its longitudinal axis.

-2. In a bunch builder mechanism, a vertically movable ring rail, a substantialy vertical shaft arranged near the ring rail, a latch pivotally mounted'upon the shaft to turn substantialy horizontally and to be moved over the ring rail, a member mounted upon the shaft to turn therewith and contacting with the latch to swing it in one direction, the latch being manually removable from the member, a spring to turn the latch toward the member, and means to turn the shaft.

33. In a bunch builder mechanism, a vertically movable ring rail, a substantially vertical shaft mounted near the ring rail, a generally U-shaped latch including a side and ends, said ends having knuckles to pivotally receive the shaft, a pin mounted upon the shaft to turn therewith and engaging the side of one end, such end being movable from the pin, a spring to swing the latch upon the shaft so that said end is brought into engagement with the pin, gearing to turn the shaft, and means to operate the gearing.

4. In a bunch builder mechanism, a vertically movable ring rail, a substantialy vertical shaft mounted near the ring rail, a latch mounted upon the shaft for coaction with the ring rail, a substantially horizontal shaft mounted near the substantially vertical shaft, gearing connecting the shafts, a lever mounted upon the substantially horizontal shaft, means to move the lever including a pivoted toothed arm, and a connecting rod attached to the toothed arm and connected with the lever.

5. In a bunch builder mechanism, a vertically movable ring rail, a substantialy vertical shaft mounted near the ring rail, a horizontally swinging latch carried by the shaft for coaction with the ring rail, a beveled gear mounted upon the shaft, a substantiallyhorizontal shaft mounted near the substantially vertical shaft, a beveled gear mounted upon the substantially horizontal shaft and engaging the first named beveled gear, a lever mounted upon the substantially horizon. tal shaft and carrying a pin, a connecting rod provided with a member having an elongated slot to receive the pin, and means to move the connecting rod including a pivoted tooth arm having pivotal connection with the rod.

RANSOM R. GIBSON. 

